109 Virginis

{{Starbox begin

| name = 109 Virginis

}}

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Virgo

| ra = {{RA|14|46|14.92345}}

| dec = {{DEC|+01|53|34.3818}}

| appmag_v = +3.72

}}

{{Starbox character

| type =

| class = A0 V

| b-v = {{Val|−0.005|0.006}}

| u-b =

| variable = None

}}

{{Starbox astrometry

| radial_v = {{Val|−6.1|2.7}}

| prop_mo_ra = {{val|-115.08}}

| prop_mo_dec = {{val|-20.464}}

| pm_footnote =

| parallax = 24.2814

| p_error = 0.2271

| parallax_footnote =

| absmag_v =

}}

{{Starbox detail

| source =

| mass = 2.40

| radius = {{solar radius calculator|type=logLT|1=1.67|2=9418.9|decimals=2}}{{efn|name=radius}}

| luminosity = {{Val|46.8|1.1}}

| temperature = {{val|9420|130|fmt=commas}}

| gravity = {{Val|3.83|0.12}}

| metal_fe = {{Val|−0.41|0.14}}

| rotational_velocity = 285

| age_myr = 320

}}

{{Starbox catalog

| names={{odlist | F=109 Vir | BD=+02°2862 | FK5=547 | HD=130109 | HIP=72220 | HR=5511 | SAO=120648 }}

}}

{{Starbox reference

| Simbad=109+Vir

}}

File:Virgo constellation PP3 map PL.svg

109 Virginis is a single, white-hued star in the zodiac constellation of Virgo, located some 134.5 light years away from Earth. It is the seventh-brightest member of this constellation, having an apparent visual magnitude of +3.72.

This is an A-type main-sequence star with a stellar classification of A0 V, and is a suspected chemically peculiar star. However, Abt and Morrell (1995) gave it a class of A0 IIInn, matching a giant star with "nebulous" lines. It is spinning rapidly with a projected rotational velocity of 285 km/s, which is giving the star an oblate shape with an equatorial bulge that is an estimated 31% larger than the polar radius. The star is 320 million years old with 2.4 times the mass of the Sun and about 2.57 times the Sun's radius.{{efn|name=radius}} It is radiating 47 times the Sun's luminosity from its photosphere at an effective temperature of 9,420 K.

Notes

{{Notelist|notes=

{{Efn|name=radius|1=Calculated, using the Stefan-Boltzmann law and the star's effective temperature and luminosity, with respect to the solar nominal effective temperature of 5,772 K: $\sqrt{\biggl(\frac{5,772}{10^{3.974}}\biggr)^4 \cdot 10^{1.67}} = 2.57\ R_\odot.$ }}

}}

References

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Category:A-type main-sequence stars

Category:Virgo (constellation)

Category:Durchmusterung objects